我到处寻找这个问题的解决方案,我能找到的唯一答案似乎是“不要把一个ListView放入一个ScrollView”。不过,我还没有看到任何真正的解释。我能找到的唯一原因似乎是谷歌认为你不应该这么做。我知道,所以我做了。

问题是,如何将ListView放到ScrollView中而不缩到最小高度?


当前回答

感谢Vinay的代码,这是我的代码,当你不能在滚动视图中有一个列表视图时,你需要这样的东西

LayoutInflater li = LayoutInflater.from(this);

                RelativeLayout parent = (RelativeLayout) this.findViewById(R.id.relativeLayoutCliente);

                int recent = 0;

                for(Contatto contatto : contatti)
                {
                    View inflated_layout = li.inflate(R.layout.header_listview_contatti, layout, false);


                    inflated_layout.setId(contatto.getId());
                    ((TextView)inflated_layout.findViewById(R.id.textViewDescrizione)).setText(contatto.getDescrizione());
                    ((TextView)inflated_layout.findViewById(R.id.textViewIndirizzo)).setText(contatto.getIndirizzo());
                    ((TextView)inflated_layout.findViewById(R.id.textViewTelefono)).setText(contatto.getTelefono());
                    ((TextView)inflated_layout.findViewById(R.id.textViewMobile)).setText(contatto.getMobile());
                    ((TextView)inflated_layout.findViewById(R.id.textViewFax)).setText(contatto.getFax());
                    ((TextView)inflated_layout.findViewById(R.id.textViewEmail)).setText(contatto.getEmail());



                    RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

                    if (recent == 0)
                    {
                        relativeParams.addRule(RelativeLayout.BELOW, R.id.headerListViewContatti);
                    }
                    else
                    {
                        relativeParams.addRule(RelativeLayout.BELOW, recent);
                    }
                    recent = inflated_layout.getId();

                    inflated_layout.setLayoutParams(relativeParams);
                    //inflated_layout.setLayoutParams( new RelativeLayout.LayoutParams(source));

                    parent.addView(inflated_layout);
                }

relativeLayout保持在ScrollView中,所以它都是可滚动的:)

其他回答

以前这是不可能的。但是随着新的Appcompat库和Design库的发布,这可以实现。

你只需要使用NestedScrollView https://developer.android.com/reference/android/support/v4/widget/NestedScrollView.html

我不知道它将与Listview工作与否,但与RecyclerView工作。

代码片段:

<android.support.v4.widget.NestedScrollView 
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.v7.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

</android.support.v4.widget.NestedScrollView>

下面是我的计算列表视图总高度的代码版本。这个对我很有用:

   public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null || listAdapter.getCount() < 2) {
        // pre-condition
        return;
    }

    int totalHeight = 0;
    int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(BCTDApp.getDisplaySize().width, View.MeasureSpec.AT_MOST);
    int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        if (listItem instanceof ViewGroup) listItem.setLayoutParams(lp);
        listItem.measure(widthMeasureSpec, heightMeasureSpec);
        totalHeight += listItem.getMeasuredHeight();
    }

    totalHeight += listView.getPaddingTop() + listView.getPaddingBottom();
    totalHeight += (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight;
    listView.setLayoutParams(params);
    listView.requestLayout();
}

我把@DougW的实用程序转换成c#(在Xamarin中使用)。下面的代码对于列表中固定高度的项目很有效,如果只有一些项目比标准项目稍大一点,那么大多数项目都将很好,或者至少是一个良好的开端。

// You will need to put this Utility class into a code file including various
// libraries, I found that I needed at least System, Linq, Android.Views and 
// Android.Widget.
using System;
using System.Linq;
using Android.Views;
using Android.Widget;

namespace UtilityNamespace  // whatever you like, obviously!
{
    public class Utility
    {
        public static void setListViewHeightBasedOnChildren (ListView listView)
        {
            if (listView.Adapter == null) {
                // pre-condition
                return;
            }

            int totalHeight = listView.PaddingTop + listView.PaddingBottom;
            for (int i = 0; i < listView.Count; i++) {
                View listItem = listView.Adapter.GetView (i, null, listView);
                if (listItem.GetType () == typeof(ViewGroup)) {
                    listItem.LayoutParameters = new LinearLayout.LayoutParams (ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent);
                }
                listItem.Measure (0, 0);
                totalHeight += listItem.MeasuredHeight;
            }

            listView.LayoutParameters.Height = totalHeight + (listView.DividerHeight * (listView.Count - 1));
        }
    }
}

谢谢@DougW,当我不得不使用其他人的代码时,这让我摆脱了困境。: -)

我们可以将ListView用作ScrollView,而不是将ListView放在ScrollView中。必须在ListView中的东西可以放到ListView中。在ListView的顶部和底部的其他布局可以通过添加布局到ListView的页眉和页脚。整个ListView会给你滚动的体验。

嘿,我也有类似的问题。我想显示一个列表视图,不滚动,我发现操纵参数工作,但效率低,会在不同的设备上表现不同。因此,这是我的一段调度代码,它实际上非常有效地完成了这个任务。

db = new dbhelper(this);

 cursor = db.dbCursor();
int count = cursor.getCount();
if (count > 0)
{    
LinearLayout linearLayout = (LinearLayout) findViewById(R.id.layoutId);
startManagingCursor(YOUR_CURSOR);

YOUR_ADAPTER(**or SimpleCursorAdapter **) adapter = new YOUR_ADAPTER(this,
    R.layout.itemLayout, cursor, arrayOrWhatever, R.id.textViewId,
    this.getApplication());

int i;
for (i = 0; i < count; i++){
  View listItem = adapter.getView(i,null,null);
  linearLayout.addView(listItem);
   }
}

注意:如果你使用这个,notifyDataSetChanged();将不会像预期的那样工作,因为视图将不会被重绘。 如果你需要变通,就这么做

adapter.registerDataSetObserver(new DataSetObserver() {

            @Override
            public void onChanged() {
                super.onChanged();
                removeAndRedrawViews();

            }

        });